This page shows Tax-Brackets.org's archived Wisconsin tax brackets for tax year 2003. This means that these brackets applied to all income earned in 2002, and the tax return that uses these tax rates was due in April 2003.

Wisconsin's income tax brackets were last changed one year prior to 2003 for tax year 2002, and the tax rates have not been changed since at least 2001.

2003 Wisconsin Tax Deduction Amounts

Tax-Brackets.org also maintains an archive of important Wisconsin income tax exemption amounts, including the Wisconsin Standard Deduction, the Wisconsin Personal Exemption, and the Wisconsin Dependent Deduction. The values of these deductions for tax year 2003 are as follows:

Sources & Citations

Disclaimer: While we do our best to keep our historical Wisconsin income tax rates up to date and complete, we cannot be held liable for errors or omissions. Is info on this page missing or out-of-date? Please let us know so we can fix it!

Tax Data Sources:

The Wisconsin tax brackets on this page sourced from the Wisconsin Department of Revenue in 2003. Please contact us if any of our Wisconsin tax data is incorrect or out of date.